Portion of an arm of a riveter



FIG. 1 is a top perspective view of a first embodiment of a portion of an arm of a riveter showing my new design;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a left view of FIG. 1;

FIG. 5 is a right view of FIG. 1;

FIG. 6 is a top view of FIG. 1;

FIG. 7 is a bottom view of FIG. 1;

FIG. 8 is another perspective view of FIG. 1;

FIG. 9 is a top perspective view of a second embodiment of a portion of an arm of a riveter showing my new design;

FIG. 10 is a front view of FIG. 9;

FIG. 11 is a rear view of FIG. 9;

FIG. 12 is a left view of FIG. 9;

FIG. 13 is a right view of FIG. 9;

FIG. 14 is a top view of FIG. 9;

FIG. 15 is a bottom view of FIG. 9; and,

FIG. 16 is another perspective view of FIG. 9.

In the drawings, the broken lines shown in the figures depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a portion of an arm of a riveter, as shown and described. 